Yamaha SRX700D - Grip and Thumb Warmer Coil; Variable Resistor

8-22
–+
ELEC
–+
Ω × 1
BW
(L) (R)
21

GRIP WARMER SYSTEM
SDN8370
SDN8380
SDN8390
SDN8400
GRIP AND THUMB WARMER COIL
1. Disconnect:
• Grip warmer leads 1
• Thumb warmer coupler 2
2. Connect:
• Pocket tester
(to the grip warmer coil leads and/or thumb
warmer coil leads)
3. Check:
• Grip warmer 1 continuity
• Thumb warmer 2 continuity
No continuity → Replace both grips to-
gether or separately and/or the handlebar
switch.
VARIABLE RESISTOR
1. Disconnect:
• Variable resistor coupler
2. Connect:
• Pocket tester
(to the variable resistor coupler)
3. Check:
• Variable resistor resistance
When pulley is turned once.
Out of specification → Replace the variable
resistor.
Variable resistor resistance:
(Yellow/White – Black/Red)
400 ~ 600 Ω at 20°C (68°F)
Y/WB/R
+–
Ω × 1